@article{51267, abstract = {{We study the suitability of Unmanned Aerial Vehicles (UAVs) as purely opportunistic airborne virtual network infrastructure to support urban wireless networks, specifically in two Vehicle-to-Everything (V2X) use cases: First, UAVs being used as relays for cooperative awareness applications; second, UAVs being used to coordinate channel access for platooning in urban areas. We do not require that these UAVs alter trajectory nor speed from those of their random, unrelated primary missions, so that these additional tasks can be executed with close-to-zero impact on the execution of their primary missions. Based on extensive computer simulations we show that, within a wide band of acceptable speeds, flight routes (up to a standard deviation of 300 m from the optimum) as well as altitudes, opportunistic relaying of transmissions via UAVs can yield a benefit to system performance that is on the same order of magnitude as that of optimally deployed UAVs. We further show that an opportunistic channel access control can reduce the total number of packet collisions by approx. 86 % compared to a scenario without any UAVs. Moreover, much of the reduction in impact due to suboptimal missions can be recovered simply by moderately increasing the number of UAVs.}}, author = {{Hardes, Tobias and Sommer, Christoph}}, issn = {{0140-3664}}, journal = {{Elsevier Computer Communications}}, publisher = {{Elsevier}}, title = {{{Opportunistic Airborne Virtual Network Infrastructure for Urban Wireless Networks}}}, doi = {{10.1016/j.comcom.2023.06.003}}, year = {{2023}}, } @article{12007, author = {{Eckhoff, David and Sommer, Christoph}}, issn = {{0140-3664}}, journal = {{Computer Communications}}, pages = {{118--128}}, title = {{{Readjusting the privacy goals in Vehicular Ad-Hoc Networks: A safety-preserving solution using non-overlapping time-slotted pseudonym pools}}}, doi = {{10.1016/j.comcom.2018.03.006}}, year = {{2018}}, } @article{12020, author = {{Heinovski, Julian and Klingler, Florian and Dressler, Falko and Sommer, Christoph}}, issn = {{0140-3664}}, journal = {{Computer Communications}}, pages = {{84--92}}, title = {{{A simulative analysis of the performance of IEEE 802.11p and ARIB STD-T109}}}, doi = {{10.1016/j.comcom.2018.03.016}}, year = {{2018}}, } @article{12075, author = {{Turcanu, Ion and Klingler, Florian and Sommer, Christoph and Baiocchi, Andrea and Dressler, Falko}}, issn = {{0140-3664}}, journal = {{Computer Communications}}, pages = {{54--64}}, title = {{{Duplicate suppression for efficient floating car data collection in heterogeneous LTE-DSRC vehicular networks}}}, doi = {{10.1016/j.comcom.2018.03.015}}, year = {{2018}}, } @article{16369, author = {{Turcanu, Ion and Klingler, Florian and Sommer, Christoph and Baiocchi, Andrea and Dressler, Falko}}, issn = {{0140-3664}}, journal = {{Computer Communications}}, pages = {{54--64}}, title = {{{Duplicate suppression for efficient floating car data collection in heterogeneous LTE-DSRC vehicular networks}}}, doi = {{10.1016/j.comcom.2018.03.015}}, year = {{2018}}, } @article{16370, author = {{Heinovski, Julian and Klingler, Florian and Dressler, Falko and Sommer, Christoph}}, issn = {{0140-3664}}, journal = {{Computer Communications}}, pages = {{84--92}}, title = {{{A simulative analysis of the performance of IEEE 802.11p and ARIB STD-T109}}}, doi = {{10.1016/j.comcom.2018.03.016}}, year = {{2018}}, } @article{11989, author = {{Campolo, Claudia and Cheng, Lin and Sommer, Christoph and (Michael) Tsai, Hsin-Mu}}, issn = {{0140-3664}}, journal = {{Computer Communications}}, pages = {{1--2}}, title = {{{Special Issue on Multi-radio, Multi-technology, Multi-system Vehicular Communications}}}, doi = {{10.1016/j.comcom.2016.09.003}}, year = {{2016}}, } @article{1375, author = {{Beister, Frederic and Dräxler, Martin and Aelken, Jörg and Karl, Holger}}, issn = {{0140-3664}}, journal = {{Computer Communications}}, pages = {{77--85}}, publisher = {{Elsevier BV}}, title = {{{Power model design for ICT systems – A generic approach}}}, doi = {{10.1016/j.comcom.2014.02.007}}, volume = {{50}}, year = {{2014}}, }